CVE intelligence and bounded remediation

CVE-2017-17306 — Huawei Vns-L21 Firmware security vulnerability

Medium CVSS 5.5

Some Huawei Smartphones with software of VNS-L21AUTC555B141, VNS-L21C10B160, VNS-L21C66B160, VNS-L21C703B140 have an array out-of-bounds read vulnerability. Due to the lack verification of array, an attacker tricks a user into installing a malicious application, and the application can exploit the vulnerability and make attacker to read out of bounds of array and possibly cause the device abnormal.

Severity
Medium
CVSS
5.5 (3.0)
Published
2018-03-20
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-125

Affected products

  • huawei / vns-l21_firmware / vns-l21autc555b141
  • huawei / vns-l21_firmware / vns-l21c10b160
  • huawei / vns-l21_firmware / vns-l21c66b160
  • huawei / vns-l21_firmware / vns-l21c703b140

Matched remediation archetype

Buffer bounds, memory safety, and memory corruption

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Check exposure

  • Identify affected native-code versions, build flags, architectures, parsers, codecs, drivers, and input paths in all shipped artifacts.
  • Determine whether untrusted data reaches the affected routine and the process privilege, sandbox, and network exposure.
  • Confirm statically linked, vendored, firmware, and platform-provided copies, not only package-manager records.

Remediate safely

  • Apply the maintained upstream correction or replace the affected component, then rebuild every dependent artifact from clean inputs.
  • Adopt bounds-checked interfaces, validated sizes and integer conversions, clear ownership, and memory-safe components where practical.
  • Enable supported compiler and runtime hardening and add sanitized tests and fuzz regression seeds derived from non-weaponized fixtures.

Authoritative sources

Complete CVE record and remediation plan

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